Cutting-edge research shows how to determine and decrease your true biological age.

What if there was a way to measure our biological age? And what if there were strategies to slow down—or even reverse—the aging process? The answers to these questions lie at the heart of the groundbreaking work Dr. Morgan Levine is doing in her lab at Yale.

True Age introduces readers to the latest developments in the science of aging and longevity. It provides an in-depth understanding of biological age and the methods now available to estimate our own. It helps us target an individualized plan to eat, exercise, and sleep, as well as pointing to other lifestyle practices like intermittent fasting and caloric restriction that have been shown to slow or reverse the aging process.

The goal is to guide every reader toward a personal regimen to keep them as youthful as possible—both inside and out—with low risk, data-driven biohacking. The book gives readers and their doctors unprecedented ways to identify their personalized aging process and increase not only their lifespan but also then their healthspan.
“Morgan Levine sits at the epicenter of designing tools that measure biological age, and she has a gift for explaining how they work. I found her book to be an accessible, riveting ride through the science of aging and what we can do -- most importantly -- to slow it down!”
— Kara Fitzgerald, ND IFMCP, Author of Younger You
“True Age bridges the gap in our understanding of disease and aging through a masterful explanation of the roots causes of aging, and the advances in measuring our “true age” or our biological age. Dr. Levine maps our what we know about how to reverse our biological age through the latest scientific advances in longevity. For anyone interested in enhancing their health, and extending their lifespan, this book is essential reading.”
— Mark Hyman, MD, New York Times bestselling author of The Pegan Diet and Senior Advisor, Cleveland Clinic Center for Functional Medicine
"True Age powerfully reminds us that our bodies have an amazing ability to regulate, regenerate and repair based on our lifestyle choices. That’s why our biological age can diverge from our chronological age. As Morgan Levine shows, based on the latest scientific findings, there is a lot that is in our hands concerning both our healthspan and our lifespan."
— Arianna Huffington, Founder & CEO, Thrive Global
"There is an ever-increasing recognition that taking the best care of our bodies and brains plays a critical role in lengthening our lifespan and healthspan. Morgan Levine shows us proven strategies to turn back the clock and put ourselves on the road to good health."
— Lisa Mosconi, New York Times bestselling author of The XX Brain

"This book heralds a new age: for years, we’ve been told that we can look younger with the right face cream, the right hair coloring, or the right plastic surgery. But recent research has shown, for the first time, that we can actually be younger—we can measure our true biological age and, surprisingly, reduce it. For anyone interested in being younger, read this book and add some years to your life."
— Dale Bredesen, MD, professor and author of the New York Times bestseller The End of Alzheimer's
"Making changes to our lifestyle -- nutrition, exercise, sleep -- has turned out to be the secret key to preventing and even reversing disease.  Now Morgan Levine's terrific program shows how those changes translate into reversing the aging process to live a longer, healthier, happier life."
— Terry Wahls, M.D. author of The Wahls Protocol
"I've long been aware of Morgan Levine's groundbreaking work and I am thrilled to see it in True Age.  This research can have a life-changing impact on our health and well-being.  We won't just feel better and be all-around healthier, we may have the opportunity to be aging backward!"
— Sara Gottfried, M.D. New York Times bestselling author of Women, Food, and Hormones

“This great book from one of my close collaborators will not only help you discover your true chronological age, it will help you turn back the clock.”
— Valter D. Longo, PhD, author of The Longevity Diet